Oscillatory motor.



R. B. GOODRIGH.

OSGILLATORY MOTOR.

APPLICATION IILBD DBO. s, 1908.

1,044,042 Patented NOV. l12, 1912.

COLUMBIA PLANDURAPH C0..wAsHlNuTDN. DA C.

RALPH B. GOODRICH, F CINCINNATI, OHIO.

OSCILLATORY MOTOR.

Specification of Letters Patent.

Patented Nov. 12, 1912.

Application led December 3, 1908. Serial No. 465,839.

To all whom it may concern.'

Be it known that I, RALPH B. GooDRICH,

' a citizen of the United States, residing at Cincinnati, in t-he countyof Hamilton and State of Ohio, have invented certain new and usefulImprovements in Oscillatory Motors, of which the following is aspecification.

`This invention relates to motors, and more particularly those o-f thetype disclosed in my Patent, No. 884,654, granted April 14, 1908, thoughthere are' features not necessarily limited thereto.`

The primary obj ect of this invention is to provide means for securingthe valve heads in position on the valve stem, the securing meansheretofore employed having proven ineffective and expensive. `This isanimport-ant feature in the practical use of water motors of this generaltype because the present methods of securing the valve heads in positiondo not insure a reasonably` long life of the motor, owing to theaccidental displacement and dismemberment of the valve parts.

While the invention .can be embodied in a number of different ways, thepreferred form of construction is illustrated in the accompanyingdrawings, wherein Figure 1 is a longitudinal sectional view through themotor, also cutting through the valve cage. Fig 2 is a horizontalsectional view through the structure. Fig. 3 is a detail.

Similar reference numerals designate corresponding parts in all thefigures of the drawings.

The improvements provided by the present invention are designed to beassociated by an oscillating motor of the type disclosed in my formerpatent, hereinbefore referred to. However, for the purposes ofillustration, the general features of such a motor may be referred to asfollows: A cylinder member is employed, comprising a circular side wall8 and end heads 9 detachably interlocked with the edges of the sidewall. To this end, the margins of said side wall are tapered to producesubstantial wedges, and the inner sides of the heads have grooves toreceive the same. The heads are provided with suitable outstanding ears10 through which are passed tie bolts 11 that serve to draw the headstoward each other, and thus effectively hold the elements of thecylinder member in associated relation and prevent leakage through th'ejoints. The upper head of the cylinder member is provided with apackingbox, which includes an upstanding boss l2 into which is threadeda cap 13. The lower head is also provided with a boss 14, into which isthreaded a collar 15, the said boss 14 and collar 15 consequentlyproducing a lower packing box.

The motor shaft, which is designated generally by the reference numeral16, extends through the lower packing box, through the cylinder member,and has its upper end journaled in the upper packing box, said upper endpreferably extending into the cap 13. This shaft furthermore has theportion which extends through the lower box, reduced in diameter,thereby producing an annular shoulder 17 that rests upon the inner faceof the lower head and forms a support for the shaft.

Secured to the portion of the shaft that is located within the cylindermember is the piston. This piston includes a body vane 20, suitablysecured to the shaft and having cupped or dished packing sheets 21arranged against its opposite face. The packing sheets are maintained inposition by bracket plates, each bracket plate consisting of angularlydisposed arms 22 and 23. The arms 22 rest against the said packingsheets, and are 'secured in place by suitable bolts 24, or otherfasteners. The other arms 23 thus stand out at substantially rightangles to the vane 2O and carry the valve actuators, as hereinafterdescribed.

Arranged within the cylinder member and inthe path of movement of thepiston is the valve cage 25. This valve cage, as in the formerconstruction, preferably consists of op positely disposed sheet metalplates or walls 26, the outer portions of which are flanged, as shown at27, and suitably secured to the side wall 8 of the motor. The innermargins of said walls are brought close together and have clampedbetween them packing strips 27a that bear against the shaft. Theinterior of this cage is divided by a partition 28 into separatechambers 29 and 30, each having communication with the interior of thecylinder member through ports 3l, formed in the opposite walls 26. Theseports are sur-V rounded by oppositc valve seats 32 and 33, struck fromthe walls, as shown. The motive fluid is supplied to the chamber 29through a coupling nipple 34, formed integral with the upper head of thecylinder member, and the exhaust is carried away from the motor and fromthe chamber 30 by means of a nipple 35, formed integral with the lowerhead. The supply and exhaust of such motive fluid is controlled by setsof oppositely disposed valves. For 4the supply a pair of oppositelydisposed valve heads 36 is employed, located within `the chamber 29 andcarried by a stem The .manner of securing these heads upon .the stem isimportant. Diiiiculty `has heretofore been experienced with thisfeature. In every case, it has been impossible to fix the valves againstloosening and detachment from the stems. It has been found that .thepresent arrangement overcomes the -diiliculty. The structure is asfollows 'The stem 37 has its end portions reduced, asshown at 38, thusproducing o posite shoulders 39. The valve heads are fi ted upon thereduced portions and abutted against said shoulders, after whichoutstanding retaining lugs 40 are pinched from the projecting ends ofthe stems, said lugs bearing against the outer endsorwings of v.theheads,and forcing them into bi,ndingengagement with the shoulders. 'Ihevalves vwhich control the exhaust ports, are set oppositely to thevalves 36. They comprise `heads 41 arranged upon the reduced terminalportions 42 of a stem, and are maintained thereupon by lugs pinched fromthe projecting portions of the stems in the manner above explained.

For the purposeof eEecting the operation of the valves, actuatingdevices are employed that are secured to the outstanding arms 23 of thebrackets. Each of these actuating devices consists of a spring body orplate 45 secured, as shown at 46 at its `outer end to the free end ofthe arm 23, which end is preferably offset slightly as shown.

From the foregoing description, it will be readily understood how theapplicant has provided a serviceable and eHective means for securing thevalve heads to their stems.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. In a motor of the character described, the combination with acylinder member and a rotatable piston operating therein, of.

means for supplying motive iiuid Yto and exhausting it from the cylindermember, said means including sets of oppositely Vdisposed valves, eachset including a stem having an abutment shoulder, and a head fitted onthe end of the .stem and abutted against the shoulder, said stem`projecting beyond the head and having retaining lugs pinched therefromand engaging the outer end of said head. f.

2. In a motor of the character described, the combination with acylinder member and a rotatable piston operating therein, of means forsupplying motive fluid to and eX- hausting it from the cylinder member,said means including sets of oppositely disposed valves operated by thepiston, each set consisting of a stem having Aopposite abutmentshoulders, and heads fitted on the end of the stem and abutted againstthe shoulders, said stems projecting beyond the heads and havmgretaining lugs pinched therefrom and engaging the outer ends `of theheads.

In testimony whereof I hereunto aix my signature in the presence of twowitnesses. RALPH B. GOODRICIFI. Vitnesses:

O. C. DAUGHERTY,

E. M. GRUB.

Copies of th'is patent maybe obtained for five cents each, byaddressing'the Commissioner of Patents, Washington, D. C.

